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http://dx.doi.org/10.5139/JKSAS.2018.46.1.78

Allowable limit of physical optics in radar cross section analysis of edge shape  

Baek, Sang-Min (Agency for Defense Development (ADD))
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.1, 2018 , pp. 78-85 More about this Journal
Abstract
As a numerical analysis technique to predict the radar cross section of an aircraft, a full wave method or an asymptotic method is mainly used. The full-wave method is expected to be relatively accurate compared with the asymptotic method. The asymptotic method is numerically efficient, and it is more widely used in the RCS analysis. However, the error that occurs when estimating the RCS using the asymptotic method is difficult to predict easily. In this paper, we analyze the allowable limits of physical optics by constructing a wedge-cylinder model and comparing the RCS prediction results between the method of moment and physical optics while changing the edge shape. Finally, this study proposes a criterion for allowable limit of physical optics in the RCS estimation.
Keywords
Radar Cross Section; Method of Moments; Physical Optics; Diffraction;
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Times Cited By KSCI : 2  (Citation Analysis)
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